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evablogger [386]
3 years ago
14

The diameter of one circle is represented by 12x. The diameter of another circle is represented by 6x^2y. What is the ratio of t

he radii of the two circles?
Mathematics
2 answers:
Luda [366]3 years ago
5 0
12x/2=6x---------
(6x)^2y=6^2y.x^2y-------

Vesnalui [34]3 years ago
4 0
D/2=r
\frac{r_1}{r_2}= \frac{ \frac{d_1}{2} }{ \frac{d_2}{2} }  = \frac{d_1}{d_2}

so we don't even need to convert
12x:6x²y
divide both sides by 6x
2:xy
the ratio is 2:xy
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Factor out each GCF
anyanavicka [17]
15cd(1+2cd) is correct
3 0
3 years ago
What is 7a+21=56 and what is the solution
asambeis [7]
7a+21=56

Begin by subtracting 21 on both sides:
21-21=0 so the 21 in the left cancels, then 56-21=35

Your new equation will be
7a=35

Finally, divide by 7 on both sides:
7/7=1 and 35/7=5

your answer will be
a=5
7 0
3 years ago
Read 2 more answers
Use inductive reasoning to predict the next line in the pattern. Then perform the arithmetic to determine whether your conjectur
iren2701 [21]

Answer:

8(5) + 8(25) + 8(125) + 8(625) +8(3125)= 10(3125 - 1)=31240

Hence proved Conjecture is correct

L.H.S=R.H.S

Step-by-step explanation:

Consider the pattern:

8(5)=10(5-1)=40

8(5) + 8(25) = 10(25 - 1) =240

8(5) + 8(25) + 8(125) = 10(125 - 1) =1240

8(5) + 8(25) + 8(125) + 8(625) = 10(625 - 1)=6240

According to inductive reasoning next term of pattern will become:

8(5) + 8(25) + 8(125) + 8(625) +8(3125)= 10(3125 - 1)=31240

Checking whether conjecture is correct or not:

Consider L.H.S:

8(5) + 8(25) + 8(125) + 8(625) +8(3125)

40+200+1000+5000+25000

31240

R.H.S:

31240

Hence proved Conjecture is correct

L.H.S=R.H.S

7 0
3 years ago
What is 5.6 × 10^−3 yd/year in feet per day?  
Soloha48 [4]
5.6x10^-3 yd/year in feet per day.

There are 3 feet in a yard

(5.6x10^-3)x3=1.68x10^-2 feet/year
Let's take there to be 365 days in the year (Fun fact: The actual duration of our year is <span>365 days 5 hours, 48 minutes 46 seconds)

</span>\frac{1.68*10^{-2}}{365} = 4.6*10^{-5}
<span>
Therefore the correct answer is D.</span>
8 0
3 years ago
Roxanna earns 1.5 her normal hourly rate for overtime pay. Last week, Roxanna earned $72.00 in overtime pay for 4 hours. What is
serious [3.7K]

Answer:Roxana hourly paid is $12

Step-by-step explanation:

overtime pay=p

normal hourly rate=r

p=1.5r

72/4=18

p=$18/hr

p=1.5r

18/1.5 =1.5r /1.5

12=r

8 0
3 years ago
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